Lock



F. w. HEYpl.

May 16, 1933.

LOCK

Filed Nov. 2s, 1930 2 sheets-sheet 1 FIG. 2

INV NTOR fr c BY gTTORNEY F. W. HEYEL May 16, 1933.

LOCK

Filed Nov. 25 1930 2 Sheets-Sheet 2 Patented May 16, 1933 `UNITED STATES PATENT OFFICE FREDERICK W. HEYEL, OF GREENWICH, CONNECTICUT, ASSIGNOR, BY MESNE .ASSIGN- MENTS, TO XEMPLOCK INC., OF NEW YORK, N. Y., .A CORPORATION OF NEW YORK LOCK vApplication led November 26, 1930. Serial No.' 498,277.

` asimple and practical lock of the character described, having means to prevent opening j of the lock from the inside by means of the knob after the same has been locked by means of a key from the outside, and for preventing opening of the lock from the outside by means of the key after the same has been locked by means of the knob from the inside.

A further object of this invention is to provide a neat, compact and strong lock of the character described, which shall be relatively inexpensive to manufacture, comprise few and simple parts, easy to make and assemble, be smooth and positive in operation, and withal practical and eiicient to a high degree.

Other objects of this invention will in part be obvious and in part hereinafter pointed out.

.The invention-accordingly consists in the features of construction, combinations of elements, and arrangement of parts which will be exemplified in the construction hereinafter described, and of which the scope of applications will be indicated in the following claims.

In the accompanying drawings, in which is shown one of the various possible illustrative embodiments of this invention:

Fig. 1 is a rear elevational view ofthe lock and keeper and showing the edge of the door and door amb in dotted lines, and with parts of the rear plate broken away to show the interior construction; j

Fig. 2 is a partial cross-sectional View taken on line 2-2 of Fig. 1;

Fig. 3 is a side edge view of the rear cover plate for the lock;

Fig. 4 is an inside elevational View of said cover plate;

Fig. 5 is an elevational diagrammatic view of the setting mechanism looking towards the inner side ofthe rear cover plate and showing the position of the setting disc and the connecting arm Vof the look when the same is open;

Fig. 6 is a view similar to Fig. V5 but showing the parts when closed by the key, but before removing the key from the lock;

Fig. 7 4is a view similar to Fig. 6 but showing the parts with the key removed from the i I 1door after the lock has been closed by said ey 5 Fig. 8 is a view similar to Fig. 5 but shows ing the intermediate position of the parts whden closing the same by means of the knob; an

Fig. 9 is a view similar to Fig. 5 but showing the position of the parts when completely closed by the knob.

Referring now in detail to the drawings, 10 designates a portion of a closure member such as a door, on which is mounted, adjacent the Vertical edge 11 thereof, a lock 12 here shown as carrying a plurality of bolts adapted to cooperate in the manner hereinafter described with a keeper 14 attached to the door j amb 15. The lock 12 comprises a casing 12a having a front wall 18, top and bottom walls 19 and 20, an end wall 21 remote from the edge of the door, and a second end wall 22 disposed adjacent said edge of the door. The casing may be secured to the door in any suitable manner. The top and bottoni walls 19 and 20 and the end wall 21 are formed with an internal ledge or shoulder 26 adjacent the rearedge25thereof for seating a rear cover plate 27, fixed to said casing by any suitable fastening means. The top and bottom walls 19 and 20 are furthermore formed with aligned tubular vertical portions 30 and 31 respectively, adjacent said end wall 22 for the purpose hereinafter explained. y

Slidably mounted in any suitable manner within the casing 12a for reciprocatory horizontal movement is an angle shaped member having a plate portion 41 disposed adjacent said wall 18 and a wall portion 42 extending from and at right angles to said wall 41, said wall portion 42 being front wall 22.

Mounted on said wall 42 are a pair of horizontal similar, symmetrically disposed bolts 44 and 45 having reduced portions 44aV and 45a extending through openings 44?) and 456 in said plate portion 42. Fixed to said member 40 are a pair of pins 46 and 47 extending Vthrough said reduced portion 44a and 45a parallel to the l toward the cover plate 27, for the purpose hereinafter appearing.

The pins 46, 47 thus serve to fix the bolts 44, 45 to the member 40. The forward ends 48 and 49 of the bolts 44, 45 slidably extend within openings 50 and 51 formed in said wall 22 as illustrated in lEig. 1 of the drawings. The lock is provided with pair of vertical bolts 52, 53 adapted to be moved in the manner hereinafter described outwardly away from each other simultaneously with the projection of the horizontal bolts 48, 49. Said bolts 52, 53 are symmetrically disposed with respect to one another and are provided with portions 54 and 55 slidably extending within the tubular portions 30 and 31 of easing 12a.. Extending inwardly from said bolt portions 54, 55 are flat plate portions 56, 57 having pins 58 and 59 fixed thereto adjacent the inner ends thereof, said pins projecting rearwardly toward the cover plate 27. Fixed to the inner side of the cover plate 27 and projecting therefrom are pins 60 and 61. symmetrically disposed with respect to the horizontal mid-section of the lock and disposed to the left of the plate portion 42 when the lock is in unlocked position as shown in Figs. 1 and Pivoted to the pins 60 and (il are a pair of symmetrically disposed plate members 63, 64 having suitable openings for rcceivinp` said pins. Said members 63, 64 are provided with substantially oval openings 65, 66 receiving the pins 58, 59, respectively. Said plate members 63, 64 are further provided with elongated slots 67, 68 inclined toward the horizontal mid-section of the lock and toward the end Wall 22, said slots preferably being straight and receiving the rear ends of the pins 46, 47 respectively, therethrough. K

It will now be seen that upon moving the plate 40 in the manner hereinafter appearing, toward the end wall 22, the plate members 63, 64 are pivoted about the pins 60, 61 away from each other, said pivotal movement being caused by the engagement of the pins 46, 47 within the slots 67, 68. Said pivotal movement of the plate members 63, 64 away from each other will obviously cause sliding movement of the bolts 52, 53 in opposite directions away from each other. Said bolts are provided with portions 70 and 71 extendinglfrom said portionsV 54, 55 respec- V tively, parallel to each other and adapted to overlap the door j amb; and extending from said portions 70, 71 are vertically aligned outwardly extending portions 72, 73. The keeper 14 is provided with end plates 75, 76 formed with suitable openings 75a and 76a, receiving said portions 72, 73 respectively. The keeper 14 is further provided with a plate portion 7 8 formed with snitable'openings 79, adapted to receive the end portions 48, 49 of the bolts 44, 45. Obviously, movement of the plate 40 in the manner hereinafter appearing to the left (looking at Figs. 1 and 2) for retracting t-he horizontal bolts 44, 45, will cause the plates 63, 64 to be pivotally moved inwardly toward each other about the pins 60, 61, said movement causing retraction of the bolt members 52, 53 for disengaging the portions 72, 73 from the keeper.

Means is provided for moving sai-d member 40 to the right or to the left for locking or unlocking the lock from the inside of the door 10 and from the outside thereof. To this end the front wall 18 of the casing is formed with an integral boss 80 having` a bore 81a rotatably receiving a linger knob 81 projecting into the casing. Fixed to the inner end of the knob is an arm 82 having a pin 83 at the outer end thereof. A connecting link member 84 is provided with a bearing 83a at one end thereof pivotally receiving said pin 83, said link having an opening 835 at the other end thereof receiving a pin 85 iii-:ed to the plate portion 41.

1t will now be seen that upon rotating the knob 81 the arm 82 is rotated therewith for moving the connecting link member 84 to cause sliding movement of the member 40. To provide means for opening the door from the outside, the rear plate 27 is formed with a circular opening 100 substantially aligned with the bore 81a in the front wall 18, and rotatably mounted within said opening- 100 is a tubular member or sleeve 101 having a flange 102 on the outer side of cover plate 27; and fixed to the inner end of said tubular member 101 is a disc 103 substantially contat-ting the inner face 104 of said plate 27. Extending from said disc 103 and projecting intovthe casing a pin 105 adapted to be aligned with the pin 83. Extending from said disc is a projection 107 said projection being parallel to and spaced'from the pin 105 by about 120 degrees. Formed on the inner side of the tube 101 are a pair of angular shaped projections 108, 109 dispose-d oppositely to each other and in the same plane, each formed with edges 1080i and 109@ respectively, parallel to each other.

Attached to the outer surface 88 of the door 10 is a key tumbler mechanism 89 adapted to receive a key for turning an actuating` flat elongated strip 91, the forward end of said strip projecting through said tubular member 101 and between the portions 108 and 109. Looking for instance at Fig. 5 of the drawings, it will be noted that the forward member 91 is adapted to substantially contact, in one position thereof, the edges 108@ and 109e of the portions 108, 109. The connecting link member 84 is formed with a projection 110 of substantially semi-circular or inverted U-shaped cross-section, extendabove and about the upper half of the pin 105 for the purpose hereinafter appearing. he projection 107 is preferably of larger diameter than said pin 105 and closer to the center of disc 103 than said pin.

Fig. 5 shows the position of the disc 103, connecting link member 84, the pin 105 and projection 107, the actuating strips 91 and the angular segmental shaped projections 108, 109. In Fig. 5 the parts are shown in position when the door is unlocked, the connecting rod being at the left. In Figs.V 5, 6, 7 and 8, the portion 108 is designated by inclined cross hatching and the member 109 is designated by vertical cross hatching For closing the lockby means of the key 90, the key is turned in the direction for moving the member 91 in a clockwise direction looking at"Fig. 5, said movement causing rotation of the disc 103 by reason of the interengagement of said member 91 with the portions 108, 109.

Rotation of the key through 180 degrees will cause the pin 105 to engage the portion 110 of the connecting` link 84 and move the same tothe position shown in Fig. 6 for pro j ecting both the horizontal and vertical bolts simultaneously and locking the door. Before the key can be removed, however, from the tumbler 89, the same must be turned further in the same direction to the position shown in Fig. 7.

In this latter position, the projection 107 will have been moved into contact with the Lipper and outer surface of the portion 110 of the connecting link 84. `The connecting link 84 will not have been moved during the last 180 degrees movement of the key since the pin 105 will merely move away from the portion 110 from the underside thereof.

It will now be seen that with the parts in the position shown in Fig. 7, the lock may not be opened from the inside by means of the knob 80 since to do so the knob must be moved in a counter-clockwise direction for rotating the pin 83 likewise in a counter-clockwise direction. Such latter movement is not possible since the pin 105 which engages the bearing 83a of the connecting link 84, will move the portion 110 of said link against the projection 107. Said projection however is fixed to disc 103 which cannot rotate in a counterclockwise direction because of the interengagement of portions 108, 109 with the strip 91 which is held in locked position by the tumblers of lock 89. Thus, after the lock has been locked by the .key it can only be engages the projection 107 which it overlaps, the disc 103 will be rotated in a clockwise direction for bringing the parts to the position shown in Fig. 9. In this position, the projection 107 will be ybelow the portion 110. It

`will be noted that during the last portion of` the movement, rotation of the disc will bring the portions 108 and 109 to the position shown in Fig. 9 without obstruction from strip 91.

lVith the parts as shown in Fig. 9, the lock having been locked by means of the knob from the inside, said lock cannot be opened by the key 90 from the outside, since a turning movement of the key in a counter-clockwise direction will cause strip 91 to engage portions 108, 109 of the disc 103. The disc however cannot rotate counter-clockwise because the projection 107 which is fixed to said disc is in contact with portion `110 of the link 84. The. projection 107 cannot however enter the semi-circular opening of said portion 110 and therefore, cannot retract the link. It will be noted that the bolt is attached to the free end of the link 84 and the knob is provided with an arm 82 having a pin 83 at the end thereof pivoted to the bearing 83a aligned with the semi-circular portion 110 of the link 84. rIhus an upward pressure on the member 110 would be taken up bythe bolt on one end of the link and by the knob and arm attached to the other end of the link. 'Ihe pressure of the pin 107 on the member 110, however, is directly upward.

An upward pressure on the link 84 cannot I serve to retract the bolt. Said bolt can only be retracted when there is a pull to the left on the link. A pressure directly upward, however, does not have any component to pull the `link to the left. It is only when the pin 105 engages within the semi-circular opening of said portion 110 and the disc is turned that a rotative force on the disc will cause a pull on the link 84 having a component force directed to the left for pulling the bolt to the left, as shown in the drawings, to the retracted position thereof.

I-Iowevei,movement oi the knob 81 in a counter-clockwise direction, will cause, due to the interengagement of the pin 83 within the bearing 83a, movement of the connecting link member for retracting the bolts and opening the lock. Thns once the lock is closed by the knob it can only be opened by the knob.

It" will now be understood that I have provided a lock, which, when locked by means of a key cannot be opened from the inside by the knob, as for example, by a thief who has entered the apartment or store so locked through a window. On the other hand, after the apartment has been unlocked by the key from the outside and entered and then closed by means of the knob from the inside, the lock cannot he unlocked from the outside until the person on the inside has unlocked the lock lby means of the knob.`

It will thus be seen that there is provided a device which the several objects of this invention achieved, and which is well adapted to meet conditions of practical use.

As various possible embodiments might be made of the invention, and as various changes might be made in the embodiments above set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.

Having thns described my invention, I claim as new and desire to secure by Letters Patent:

l. A lock, key actuated means for locking and unlocking said lock, a 4knob actuated means for locking and unlocking the lock, and means to prevent opening of the lock by the key actuated mechanism after locking the lock by the knob actuated mechanism.

2. A lock, key actuated means for locking and unlocking said lock, knob actuated means for locking and unlocking the lock, and means to prevent opening of the lock by the key actuated mechanism after locking the lock by the knob actuated mechanism, and to prevent unlocking of the lock by the knob actuated mechanism. after locking the lock by the key actuated mechanism.

3. ln a lock, a. casing, a bolt adapted to be projected from said casing, a member rotatably mounted on said casing, key actuated means for rotating said member, a knob rotatably mounted on said casing, a link pivoted at one end to said bolt, means for pivotally 'connecting the other end of said link to said knob wnereby said bolt may be reciprocated by turning said knob, a pin projecting from said member, and a portion on said other end of said link, detachably and pivotally receiving said pin whereby said bolt may be reciprocated by said key actuated means, and means en said member to prevent retraction of said bolt by said knob after projection ot said boltwith said key actuated mechanism.

4l. In a lock, a casing, a bolt adapted to be projected from said casing, a disc rotatably mounted on casing, key actuated means for rotating said disc, a knob rotatably mounted on said casing, a link pivoted at one end to said bolt, means for pivotally connecting the other end of said link to said knob whereby said bolt may be reciprocated by turning said knob, a pin projecting from said disc, a portion on said other end ot said link dctachably and pivotally receiving said pin whereby said bolt may be reciprocated by said key actuated means, and a projection on said disc spaced vfrom said pin adapted to contact said portion of said link upon proiecting the bolt with the key actuated means. for preventing retraction of the bolt with said knob.

` 5. In a lock, a casing, a bolt adapted to be projected from said casing, a disc rotatably mounted on said casing, kev actuated means for rotating said disc, a knob rotatably mounted on said casing, a link pivoted at one end thereof to said bolt, means for pivotally connecting the other end ot' said link to said knob, a pin projectingfrom said disc, a portion on said other end of said link, detachably and pivotally receiving said pin, a second pin on said disc spaced from said irstV pin and adapt-ed to cont-act said portion of said link, said key actuated means comprising a cylinder lock, an elongated strip adapted to be turned by a key inserted into said cylinder lock, a pair of oppositely dispos-ed spaced portions on said disc, said strip extending between said portions whereby turning et the key will cause the strip to contact said portions and rotate` said disc.

6. In a lock, a casing and a rear cover plate 'formed with a circular opening, a disc mounted on said plate for rotation coaXially ot said opening, and disposed on the inner side oi' said plate, a pair of spaced members lined to said disc and projecting into the casing, a pair of spaced, opposite segmental shaped portirms on said disc, and a member projecting into said opening and between said portions, said member being adapted to be rotated about the axis ot said opening for a limited :ingle without rotating said disc.

7. In a lock, a casing and a rear cover plate formed with circular opening, a disc mounted on said plate for rotation coaxially of said opening, and disposed on the inner side of said plate, a pair of spaced memljers fixed to said disc and projecting into the casing, a pair of spaced, opposite segmental shaped portions on said disc, and a member projecting into said opening and between said porti ns, said last mentioned member being adapted to be rotated about the axis of said opening for a limited angle without rotatingv said disc, a bolt, a link pivoted at one end thereof to said bolt, and having a semicicular portion adapted to pivotally and removably receive one ot said members projecttrom said disc, a knob rotatably mounted on `d casing and pivoted to said link, whereby said bolt may be projected upon rotating said knob, said semi-circular portion being adapted to disconnect from said first projecting member and move into Contact with said other projecting member upon turning said knob to project said bolt.

8. In a lock, a casing and a rear cover plate iliorn'ied with a'circular opening, a disc mounted on said plate for rotation coaXially of said opening, and disposed on the inner side ot said plate, a pair of spaced members fixed to said disc and projecting into the casing, i air oit spaced, opposite segmental shaped tions on said disc, and a member projecting into said opening between said portions, said last mentioned member being adapted to be rotated about the axis of said opening for a limited 'angle without rotating said disc, a bolt, a link pivoted at one end thereof to said bolt, and having a semi-circular portion` 9. In a lock, a casing and a rear cover plate,

formed with a circular opening, a disc mounted on said plate for rotation coaxially of said opening, and disposed on the inner side of the plate, a pair of spaced members fixed to said disc and projecting into the casing, a pair of spaced, opposite segmental shaped portions on said disc, `and a member projecting into said opening and between said portions,

said last mentioned member being adapted to' be rotated about the axis of said opening for a limited angle without rotating said disc, a bolt, a link pivoted at one end thereof to said bolt, and having a seini-circular portion adapted to pivotally andV removably receive one of said members projecting from said disc, said other member projecting from said disc being adapted to move into contact with said semi-circular portion upon rotating said member projecting into saidopening when the bolt has been projected, said link having a bearing portion, a knob on said casing, an arm fixed to said knob and having a pin received in said bearing portion whereby said link may be moved upon turning said knob for projecting said bolt, said semi-circular portion being adapted to disconnect from said lirst member projecting from said disc, upon turning` said knob to project ysaid bolt.

10. In a lock, a casing and a rear cover plate formed with a circular opening, a disc mounted on said plate for rotation coaXi ally of said opening, and disposed on the inner side of the plate, a pair of spaced members fixed to said disc and projecting into the casing, a pair of spaced opposite segmental shaped portions on said disc, and a member projecting into said opening 'and between said portions, said last mentioned member being adapted to be rotated about the yaxis of said opening for a limited angle without rotating said disc, a bolt, a link pivoted at one end thereof to said bolt, and having a semi-circular portion adapted to pivotally and removably receive one of said members projecting from said disc, said other member projecting from said disc being adapted to be moved into contact with said semi-circular portion, upon rotating said member projecting into said opening, said link having a bearing portion, a knob on said casing, an arm iXed to said knob and having a pin received in said bearing portion whereby said link may be moved upon turning said knob, for reciprocating said bolt, said semi-circular portion being vadapted to disconnect from said irstmember projectingffrom said disc, upon turning said knob toy project said bolt, said senii-circular portionbeing further adapted Vto be moved into contact with said other member projecting from said disc, during said last named movement of said bolt.

l1. In a lock, a casing, a member rotatably mounted on said casing, a pair of spaced proj ections on said member, av key controlled member 'projecting into said casing and having a lostmotion connection with said rotatable member, whereby said key controlled member maybe rotated thru a limited angle without rotating said rotatable member, a bolt adapted to be projected from said casing, a knob rotatably mounted on said casing, means for operatively connecting said knob to said bolt 'for reciprocating the latter upon rotating said'knob, said means having a disconnectiblepivoted connection with one of said projections whereby said bolt may be reciprocated by means of said key controlled niember, said disc being rotatable upon rotating Asaid key actuated member for projecting said bolt from unlocking position to locking position, said means disconnecting from said projection upon further rotating said keyactuated member in the same direction, said other may be rotated thru a limited angle Without" rotating said first member, a bolt adapted to be projected from said casing, a knob rotatably mounted on said casing, means for operatively connecting said knob to said bolt for reciprocating the latter upon rotating said knob, said means having a disconnectible pivoted connection with one of said projections whereby said bolt may be reciprocated by means of said key controlled member, said means being movable into contact with said other projection upon turning said knob to project said bolt from unlocking position, said means being adapted to rotate said disc upon further turning. said knob, to further project said bolt to full locking position, said o member, whereby said key controlled member may be rotated thru a limited angle without rotating said irst member, a bolt adapted to be projected fromsaid casing, a knob rotatably mounted on said casing, means for operatively connecting said knob to said bolt for reciprocating` the latter upon rotating said knob, said means having a disconnectible pivoted connection with one of said projections whereby said bolt may be reciprocated by means of said key controlled member, said disc being rotatable upon rotating said key actuated member for projecting said bolt from unlocking position to locking position, said means disconnecting from said lirst projection upon further rotating said key actuated member in the same direct-ion, said other projection being movable into contact with said means to prevent retraction of said bolt by turning said knob, said means being movable into contact with said other projection npon turning said knob to project said bolt from unloel'ing position, said means being adapted to rotate said disc upon further turn ing said knob, to further project said bolt to full locking position, said other projectionl and means being` so positioned in said latter position that rotation of said key actuated member for rotating the disc in the opposite direction tor reti-acting said bolt is prevented. In testimony whereof I affix my signature.

FREDERICK W. HEYEL. 

